SSTC based on LabCoatz version, with adjustable Schmitt trigger oscillator. With a properly adjusted device, the length of the scattered spark exceeds 20 cm.

The Pinecil LED Ring adds three LED lights to the Pinecil soldering iron to improve soldering in dark environments. This addition to the Pinecil soldering iron fits just above the soldering tip on the plastic area by friction so no glueing is required. It is easy to assemble and add to the iron using another soldering iron to connect the internals.

Simple Cute Dog Keychain with LED's

Diyas are the heart of major Indian festivals, most notably Diwali, the "Festival of Lights." Lighting rows of diyas during Diwali symbolizes the victory of Lord Rama over Ravana and the welcoming of prosperity and Godess Lakshmi (the goddess of wealth). Tired of oily Diyas? In this tutorial, I will show you guys how I created these super simple 3D printed Diwali Diyas which are safe, non greasy, reusable, easy to make and will last forever.

In this tutorial I am going to create a chaser circuit that can drive 20 or more LEDs using 555 timer IC and CD4017 decade counter.

In this tutorial, I am going to show you guys how to design this "Transformers PCB Badge" and how to solder the components to it.

This is a light bulb indicator kit that blinks with music.

Foldable Lamp Box - Night Light - reacts to sound and has adjustable brightness, USB port for charging, runs 24h on Battery - ATtiny85 processor - 25x WS2812 leds

I bet you wouldn’t have guessed this Colorful Carousel was made entirely using PCBs

Despite the many options and customization possibilities, this device is extremely simple to build, and contains a minimal number of components.

This project delivers crisp and reliable stair lighting with motion-triggered LEDs – no fading, no delay. Designed to handle up to 16 steps, it reacts instantly to movement using PIR sensors and can be configured for night-only use, sensor types, and output timing. Simple, effective, and 100 % standalone.

Recreate a Philips Hue-style smart lamp using ESP32, RGB LEDs, and separate warm/cool white strips. Fully controllable via IR, rotary encoder, and Home Assistant – with effects, brightness, and presets powered by ESPHome.